FR683956A - Rock drill bit - Google Patents

Rock drill bit

Info

Publication number
FR683956A
FR683956A FR683956DA FR683956A FR 683956 A FR683956 A FR 683956A FR 683956D A FR683956D A FR 683956DA FR 683956 A FR683956 A FR 683956A
Authority
FR
France
Prior art keywords
drill bit
rock drill
rock
bit
drill
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Schuckertwerke AG, Siemens AG filed Critical Siemens Schuckertwerke AG
Application granted granted Critical
Publication of FR683956A publication Critical patent/FR683956A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
FR683956D 1928-10-27 1929-10-26 Rock drill bit Expired FR683956A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE683956X 1928-10-27

Publications (1)

Publication Number Publication Date
FR683956A true FR683956A (en) 1930-06-19

Family

ID=6597495

Family Applications (1)

Application Number Title Priority Date Filing Date
FR683956D Expired FR683956A (en) 1928-10-27 1929-10-26 Rock drill bit

Country Status (1)

Country Link
FR (1) FR683956A (en)

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